If, you have been reading other reviews, by now you should know this is on of Canon's best lenses period.

Sharpness is awsome, colours and contrast are awsome. AF speed makes my 1D MKII instant focus, and it even makes my 10D really fast. I like how I can use it indoors unlike the F/4L.

But here is my one warning. Even for a guy who benches 320 lbs and can arm-curl a 150lb EZbar, my wrist(zooming/holding hand) becomes pretty sore after using it handheld constatly for three hours at sporting events.

My most major concern came true, TWICE. The lens had image performance problems. First, the DOF was messed up, shallow depth on left half of the image, deep on the right.
Second lens was exteremly soft at 75mm(all apertures) and wide-open everywhere else.

Thrid lens is good, not tack sharp wide-open but good. At f4 and above the lens is stunning. Contrast could be better but nothing that cant be fixed in PS.

The lens has a very nice feel to it, especially in terms of size & weight, but it still is very plasticy.

Focusing is smooth but slow. Hood clips on real tight, better then my L lenses. The center squeeze cap is also very convenient.

No one will complain about the price tag. I also don't care that it doesnt have FTM. IMO at this price, beggers can't be choosers

Overall, I reccomend this lens, but try to buy it in person so you can test it out.